In order to predict how present changes in climate will affect Canada's environment, it is essential to understand the environmental impacts of past climate changes. In this activity, paleogeographic data from the last 18,000 years are assembled, synthesized, published, and web-enabled to help...

Urban living generates waste that is usually treated to some degree and then discharged into water bodies. Too much waste can pose a risk to aquatic ecosystems and species. Pollutants can remain environmentally damaging even after passing through conventional sewage treatment. Municipal...

Hydroelectric generation is the predominant form of electric generation in Canada. A major part of the economic history of Canada consisted of the development of sites with large hydroelectric potential such as Niagara and Shawinigan. Hydro developments have had a substantial effect on rivers and...

The map shows the location of 565 lakes and reservoirs with a total lake area larger than 100 square kilometres or 38.6 square miles. A table shows the fifteen largest lakes ranked by their area with their maximum depth. An examination of inland hydrologic subsystems must stress the roles of...